Isaiah Washington, who came under fire late last year (and again early this year) after using an anti-gay slur, will be appearing in public service announcements on behalf of the Gay & Lesbian Alliance Against Defamation (GLAAD) and the Gay, Lesbian & Straight Education Network.

"We're gonna have... I want to say at least two different versions of it at this point. We may broaden our message a little," the actor's publicist, Howard Bragman, told The Associated Press.

Washington ignited controversy at the Golden Globe Awards in January after he used an anti-gay slur during a press conference... while denying he'd used it against Grey's Anatomy castmate T.R. Knight in the past.

People reported last October that Washington had allegedly used the slur during an on-set dustup with co-star Patrick Dempsey.

T.R. Knight said soon after the incident that he was gay.

After being criticized by GLAAD, a gay and lesbian advocacy group, and the ABC network, Washington issued an apology and sought counseling.

Bragman said ABC, which is owned by The Walt Disney Co., was planning to shoot the ad in the next few weeks. He also said that Isaiah Washington plans to return to Grey's Anatomy next year.

"We've heard nothing to the contrary, and we have no plans to the contrary," Bragman said.

The Gay, Lesbian & Straight Education Network seeks to ensure that schools safely accommodate students of all sexual orientations.

It's an important gesture from Washington, who has long prided himself on charitable work and contributions to various causes.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.